Yes and yes. Stylet-Oil has activity against botrytis bunch rot. Extensive testing since 1993 has shown an excellent treatment for bunch rot to be a tank mix of Rovral® at 1 lb per acre plus Stylet-Oil at 1% spray concentration. This tank mix is as effective as Rovral® sprayed alone at a rate of 2 lbs per acre. A similar performance boost occurs when Stylet-Oil is tank mixed with a label rate of Vangard® or Elevate®.

Note: Using the oil at the 1% rate will control powdery mildew at the same time.